To ensure a record of all network devices can be kept and all commands can be directed to static endpoints it is strongly recommended to set all IP addresses to static and disable DHCP.
Enable passwords and set wireless networks to appear hidden to maintain a high level of security for your installations.
If the iPad is required to be connected to the internet to use modules with web API's (i.e. Spotify), for security reasons it is recommended two separate networks are used; one with internet access for web services and the second without internet access for delivering critical DMX data allowing no access to the outside world.
Follow manufacturer guidelines of all 3rd party equipment.